SMTP Naughty List

We hate spam. We spend countless hours trying to minimize spam and do everything we can to prevent it. We prevent it by forcing mail to jump through a number of hoops that we have setup. Here's a diagram to the left. 

As you can see there are many hoops we force the mail through.

The first hoop is call IP ADDRESS CHECK. Any IP ADDRESS (or computer or server) that we add to the list never makes a connection. Naturally we add all email campaign servers, newsletter servers and the like from sending any type of email.

This method is effective because IP ADDRESSES cost money. Any IP ADDRESS listed who wants to get off the list has to change IP ADDRESSES costing the company money. The idea is to put the work back onto the aggressor. 

Here's our list of IP ADDRESSES that we don't accept mail from (in the form of CIDR):

(caution!: the list below is for US based-businesses and blocks out large portions of the Asia-Pacific Network, also known as the APNIC.)